Entrance disc with drone excluder

Rotatable entrance disc made of plastic/PVC - with four positions (ventilation, open, queen excluder, drone excluder) - for Kiel and Segeberger mating nucs. Also suitable for homemade queen rearing nucs. Ideal for use on islands where a drone excluder is mandatory. The dimensions of the entrance disc are: 5 cm diameter and 1-1.5 mm thick.